Soot collector



Nov. 6, 1934. A. E. ENGSTROM SOOT COLLECTOR Filed Dec. 21, 1933 4 2 Sheets-Sheet l 4 mam/ 1 czm/vm v Nov. 6, 1934. A. E. ENGSTROM I 1,979,873,

SOOT COLLECTOR Filed Dec. 21, 1953 2 Sheets-Sheet 2 r\rf\l\\\\ d i 7 4 Inventor 1.13.6; Si /"0272 4/ 5 4 .9

Patented Nov.

UNITED STATES ATE-NT GFFICE SOOT COLLECTOR Axel Emanuel Engstrom, Evanston, 111.

Application December 21, 1933, Serial No. 703,468

2 Claims. (Cl. 183-83) 16 features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out'in the appended claims.

15 In describing the invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which:-

Figure 1 is a perspective view of the device. Figure 2 is a longitudinal sectional view thereof.

Figure 3 is a section on line 3-3 of Figure 2. Figure 4 is a bottom plan view. 1&5 Figure 5 is a section on line 55 of Figure 1.

Figure 6 is a View of the bag member.

Figure '7 is a view of the conical member.

In these drawings, the numeral 1 indicates a vertically arranged cylinder having its top closed and provided with a nipple 2 for receiving the hose 3 of a vacuum cleaner. The bottom of the cylinder or casing is open and is closed by a hinged door 4, the hinge of which is shown at 5, and a gasket 6 is placed between the lower end of the casing and the door to form a tight joint. A spring latch '7 is fastened to the door and is adapted to engage a keeper projection 8 on the lower part of the casing for holding the door closed.

.4 An inwardly extending flange 9 is formed on the interior wall of the casing an appreciable distance above the transverse center thereof and inwardly extending lugs 10 are carried by the casing and are located slightly below the A bag 11 of porous material is adapted to be placed in the upper part of the casing, with its mouth end downwardly and with the flanged part 12, which surrounds the mouth end, engaging the under face of the casing flange. A substantially frusto-conical member 13 has a flange 14 at its upper end, which is the large end, for engaging the flange 12 of the bag, and this flange 14 is formed with the notches 15 which, when the member 13 is in a certain position, will permit the flange to be forced over the pins 10 and then by giving the member 13 a partial rotary movement, the notches will be moved out of register with the pins 10 and thus the bag and the member 13 will be supported in the position shown in Figure 2. The small end 0 of the member 13 is formed with an opening 16.

A substantially tangentially arranged nipple 17 is connected with the exterior part of the casing below the flange 9 and is in communication with the casing and a hose 18 has one end connected 5 with this nipple l7 and the other end is connected to a nozzle or the like, so that this end of the hose can be placed in a furnace, stove or the like, and then when the vacuum cleaner is put in operation, a vacuum will be created in '70 the casing 1 which will result in the soot and other material in the furnace, stove or other member being drawn through the hose 18 into the casing. The air being drawn from the casing by the vacuum cleaner will pass through n the opening 16 and through the bag 11 and then through the nipple 2 into the hose 3 so that the bag will remove soot and dust from the air before it enters the cleaner. When the cleaner is stopped, the bag 11 will collapse and thus any o dirt adhering thereto and any dirt collecting in the bag will drop into the conical member 13 and slide down the same through the opening 16 and thus collect in the bottom of the casing 1 so that the bag 11 is practically self-cleaning. 5 Due to the location and arrangement of the inlet nozzle 17, and the member 13, the dust laden air entering the casing has a centrifugal motion imparted thereto so that most of the dirt will drop into the lower part of the casing and g the finer dust which passes with the air through the opening 16 into the bag is caught by the bag and prevented from reaching the suction device. As before stated, when the suction device ceases to operate, the bag will collapse and thus cause 5 any dirt adhering to the same to fall off into the member 13 and pass through the opening 16 and thus drop into the bottom of the casing. As will be seen, the bag is spaced from the upper walls of the casing so that it can expand under the suction action without interference from the casing.

By having the spring latch '7 for holding the bottom door in closed position, the casing can easily be dumped into an ash container or the 9 like or into any other receptacle.

I prefer to use this device by placing the easing in an ash can or other container while it is being used to remove soot or the like from different parts of the furnace, stove or other 1 place and when the casing becomes full of the material, the vacuum, cleaner is shut off and then the casing partly lifted and thus the weight of the material in the casing will automatically release the latch and allow the material in the casing to drop into the ash can.

This device can be used with an ordinary vacuum cleaner, thus eliminating the vacuum cleaners of great size now used for cleaning furnaces and the like, and it eliminates the unpleasant and dirty job of cleaning furnaces by hand.

By having the conical member 13 removable, the bag can be removed and cleaned whenever necessary and a new bag substituted for the old one when the old one has become worn It is thought from the foregoing description that the advantages and novelieaturesflofthefi invention will be readily apparent.

It is to be understood that changes may be made in the construction and in the combinationand arrangement of the several parts, provided, that such changes fall within the scope of the appended cl ms."

Whatfis claimed is:-'-'

1.A' device of the class described comprising a casing having an inlet nipple tangentially arranged inafsidepart thereof, a hose connected wit h the nipple, a nipple in the top of the casing for attachment toga suction device, a substantially conicalmember supported in the casing above, the inlet nipple and having its small depending end provided with an opening, said conical member being spaced from the upper vIf end of the casing and dividing the easing into upper and lower parts, an inverted bag of porous material located in the upper part with its lower end open andcontacting the top part or" the conical member, the opening in the bag being of substantially the same dimensions as the large end of the opening formed by the conical member the air drawn from the casing by the suction device passing through said bag after passing through the conical member.

2. A device of the class described comprising a casing having a nipple in its closed top for attachment to a vacuum cleaner, an inwardly extending flange connected with the interior wall of the casing an appreciable distance below the top thereof, an inverted bag of porous material having its lower'end open and said lower end having a flange which contacts the lower face of the first mentioned flange, inwardly extending projections carried by the casing and located below ithe first mentioned flange, a conical memher having a flange extending outwardly from its large end for contacting the flange of the bag, the flange of the conical member having notches therein, whereby the flange of the conical member can be pushed past the pins and turnedto cause the pins to support the flange of the conicalmember against the flange of the bag, the lower; end of the conical member, having an opening therein, an inlet nippleconnected with aside part of the casing below the'flange of the casing, anda door closing the lower end of he casing AXEL E. ENGSTROM. 

